Fairmont climate — normals and trends
Fairmont (United States) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 11.3 °C and it receives 1,364 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (22.3 °C on average) and the coldest is January (-0.6 °C). Rainfall peaks in May.
Fairmont averages 94 frost days, 13 hot days (≥ 30 °C) and 158 rainy days per year.
Fairmont has warmed by +1.7 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The number of frost days there went from about 104 to 84 per year over the period.
The hottest day of the period reached 36.7 °C (on 7 July 1988) and the coldest -28.3 °C (on 19 January 1994).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
FairmontWest Virginia
- coords
- 39.49°, -80.14°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.3°C
Average daily high
16.3°C
Average daily low
6.8°C
Annual rainfall
1,364mm
Sunshine / day
8.4h
Mean relative humidity
72%
Average peak wind
15.0km/h
Seasonal range
22.9°C
Frost days (< 0 °C)
94 d/yr
Hot days (≥ 30 °C)
13 d/yr
Rainy days (≥ 1 mm)
158 d/yr
Annual snowfall
71.3 cm
Average feels-like high
15.2 °C
Average feels-like low
4.5 °C
Average peak gust
35.9 km/h
Tropical nights (≥ 20 °C)
16 d/yr
Solar radiation
14.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.40 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
36.7 °C
7 July 1988
Coldest day
-28.3 °C
19 January 1994
Wettest day
94 mm
17 September 2004
Windiest day
44.2 km/h
1 April 2023
Strongest gust
111.2 km/h
3 January 1999
Hottest feels-like
41.9 °C
15 July 1995
Coldest feels-like
-34.2 °C
19 January 1994
Snowiest day
34.6 cm
13 March 1993
Sunniest day
14.8 h
25 June 1941
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | -0.4 °C | -3.9 °C | 78 mm | -22 mm |
| Feb | 6.3 °C | +0.7 °C | 128 mm | +30 mm |
| Mar | 15.7 °C | +4.8 °C | 77 mm | -43 mm |
| Apr | 18.8 °C | +1.7 °C | 150 mm | +27 mm |
| May | 20.7 °C | -0.7 °C | 226 mm | +85 mm |
| Jun | 27.2 °C | +1.8 °C | 170 mm | +31 mm |
| Jul | 28.8 °C | +1.6 °C | 146 mm | +6 mm |
| Aug | 26.4 °C | -0.2 °C | 37 mm | -78 mm |
| Sep | 25.3 °C | +1.8 °C | 93 mm | -8 mm |
| Oct | 18.2 °C | +0.4 °C | 76 mm | -12 mm |
| Nov | 10.9 °C | -0.4 °C | 88 mm | -11 mm |
| Dec | 5.4 °C | -0.3 °C | 91 mm | -10 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Fairmont?
Fairmont has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 11.3 °C and it receives 1,364 mm of precipitation per year.
What is the hottest day ever recorded in Fairmont?
The hottest day measured in Fairmont between 1940 and 2025 was 7 July 1988, reaching 36.7 °C.
What is the coldest day in Fairmont?
The coldest day measured in Fairmont between 1940 and 2025 was 19 January 1994, at -28.3 °C.
Does it snow in Fairmont?
Yes. Fairmont gets on average 71.3 cm of snow per year and has around 94 frost days.
Has the climate of Fairmont warmed?
Yes: Fairmont warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Fairmont?
The wettest day measured in Fairmont between 1940 and 2025 was 17 September 2004, with 94 mm of rain in 24 hours.
What was the windiest day in Fairmont?
The windiest day measured in Fairmont between 1940 and 2025 was 1 April 2023, with winds reaching 44.2 km/h.
What is the warmest month in Fairmont?
The warmest month in Fairmont is July (22.3 °C on average); the coldest is January (-0.6 °C).
How much does it rain in Fairmont?
Fairmont receives on average 1,364 mm of precipitation per year, spread over about 158 rainy days.
Is it sunny in Fairmont?
Fairmont gets on average 8.4 hours of sunshine per day, roughly 3,066 hours per year over 1940-2025.
What is the biggest single-day snowfall in Fairmont?
The heaviest 24-hour snowfall measured in Fairmont between 1940 and 2025 was 13 March 1993, with 34.6 cm.
Are there tropical nights in Fairmont?
Yes: Fairmont has on average 16 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Fairmont?
In Fairmont, between 1940 and 2025, the highest apparent temperature reached 41.9 °C on 15 July 1995, and the lowest was -34.2 °C on 19 January 1994.
Compare Fairmont with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Fairmont